s122784
28.10.2020 •
Mathematics
3+2-5-4
A. -4
B. 2
Which one?
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Ответ:
A
Step-by-step explanation:
If this helps may i plz have brainliest :)
Ответ:
Ответ:
15
Step-by-step explanation:
We assume you mean that ...
∠1 + ∠2 = 90°
60° + 2x° = 90° . . . . given values for the angles
2x° = 30° . . . . . . . . . .subtract 60°
x = 15